performance-profiler

performance-profiler is a skill for Claude Code, Codex from bish-x/bx-dev-skill. It costs 7 tokens per session (1,375 once invoked), scanned A, original, no licence file.

A software performance engineering skill for examining how code and systems use time and resources.

In plain words
What is it for?
It is for performance-related engineering work, such as looking into slow code or inefficient systems.
Why use it?
It helps investigate slow or resource-heavy software when the available description does not specify particular profiling methods.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/bish-x/bx-dev-skill/performance-profiler
Any agent
npx skills add bish-x/bx-dev-skill --skill performance-profiler
Clone the repo
git clone --depth 1 https://github.com/bish-x/bx-dev-skill

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for performance-profiler

README.md
[![agentmods](https://agentmods.dev/badge/skills/bish-x/bx-dev-skill/performance-profiler.svg)](https://agentmods.dev/skills/bish-x/bx-dev-skill/performance-profiler)
Your own site
<a href="https://agentmods.dev/skills/bish-x/bx-dev-skill/performance-profiler"><img src="https://agentmods.dev/badge/skills/bish-x/bx-dev-skill/performance-profiler.svg" alt="Measured on agentmods" height="20"></a>
Per session 7 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,375 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00007 $0.01375
Opus 5 $0.00003 $0.00687
Sonnet 5 $0.00001 $0.00275
Haiku 4.5 $0.00001 $0.00137

Measured 4d ago against content hash 512608fe707d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

performance-profiler scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 4d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/bx-dev/skill-library/backend/performance-profiler/SKILL.md · 175 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 4d ago First seen · 175 lines · 7 tokens per session scan A 512608fe707d

Subscribe to this mod's changes

performance-profiler is a skill published in the GitHub repository bish-x/bx-dev-skill (23 stars, last pushed 3mo ago), with no licence file. It adds 7 tokens to every session and 1,375 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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